Clinical trials in anaesthesia.
D000328:Adult; D000700:Analgesics / Q000494:pharmacology; D000758:Anesthesia; D000777:Anesthetics / Q000494:pharmacology*; D002986:Clinical Trials as Topic; D006801:Humans; D008875:Middle Aged; D012106:Research; D013223:Statistics as Topic; D013514:Surgical Procedures, Operative
D000700:Analgesics; D000777:Anesthetics